Insanity

Sean Lau as Fan Kwok-sang (范國生)
Huang Xiaoming as Chow Ming-kit (周明杰)
Fiona Sit as Shum Po-yee (岑寶兒)
Alex Fong as Doctor Lui (雷醫生)
Paw Hee-ching as Fong Wai-ling's mother
Michelle Ye as Fong Wai-ling (方慧玲)
Fredric Mao as Director Lau (劉院長)
Alien Sun as Chow Ming-kit's mother
Bonnie Sin as Wong Yan-nei (王恩妮)
Michelle Wai as Mona
Joseph Lee as Officer Lee (李警官)